Submission

Score: 100

User: rosterrester

Problemset: ซื้อขายหุ้นซีเค

Language: cpp

Time: 0.026 second

Submitted On: 2026-07-16 22:21:46

#include <bits/stdc++.h>
using namespace std;

#define ll long long

int main(){
    ll n;
    cin >> n;

    vector<ll> a(n);
    for(ll i = 0; i < n; i++){
        cin >> a[i];
    }

    ll ans = 0; 
    for(ll i = 1; i < n; i++){
        if(a[i] > a[i-1]){
            ans += a[i] - a[i-1];
        }
    }
    cout << ans << "\n";
}